3502 簡便な高圧水素環境特性評価法によるステンレス鋼の低温での水素環境脆性(S20-1 高圧水素ガス下での強度特性,S20 材料強度特性に及ぼす水素の影響)
詳細
A simple testing method for mechanical properties evaluation under highly pressurized hydrogen gas was developed without using high-pressured gas chamber. Tensile properties of austenitic stainless steels, SUS 304, 304L, and 316L under 10MPa level hydrogen gas at low temperatures were obtained with this testing method and the hydrogen environmentl embrittlement for this steels was examined. Influences of highly pressurized hydrogen gas on the reduction of area at low temperatures were maximum around 200K and disappeared at 77K, which almost agreed to the reports so far and proves the effectiveness of this testing procedure.
